The brain of a lifelong bully looks different than the general population
President Donald Trump speaking at the annual NRA convention in 2019. (Screenshot/YouTube)

One in fourpeople will show patterns of antisocial behavior at least once during their childhood and adolescence. From stealing to bullying, lying, or even committing violence, most people grow out of these behaviors.But for about 10 percent of the population, antisocial behavior never goes away, persisting into adulthood. In a new study, scientists scanned the brains of 672 people to discover that people who have antisocial conduct throughout their lives have smaller brains than those who do not.Individuals who showed antisocial behavior consistently up to age 45 had a thinner cortex and smal...

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